Machinery for pressing cotton



(No Model.)

J. BACHMAN. MACHINERY FOR PRESSING COTTON.

No. 451,846. Patented May 5, 1891.

Guam lufunderthc'infiuence of block up under pressure.

compound cylinder, with the pistons and folblock of the bailing-press,attached to and ing through it, to the space wit-hin,a pipe a rates"NITE as Aren't FFICE,

or Aus'rIn, TEXAS.

MACHINERY FOR PRESSING COTTON SPECIFICATION forming part of Letter sPatent No. 451,846, dated May 5,1891.-

Application filed September 2,1890. Serial No. 363,753. (No model.)

To aZZ whom it mrt'y concern:

Be it known that I, J. A. BAOHMAN, a citizen of the United States,residing at Austin, in the county of Travis and State of Texas, haveinvented certain new and useful Improvements in Machinery for PressingCotton; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same. My presentinvention is an improvement in machinery for facilitating the pressingof cotton; and it relates particularly to mechan-.

ism in which cylinders and pistons are used, fluid o'i-'1iquid-'si'ichas steam, air, water, or gas under pressure-to operate thefollower-block of a baling-press.

In my device I employ a compound cylinder-that is, a cylinder made up oftwo cylinders of different sizes or diameters, each having its ownpiston and both fixed about a single piston-rod.

The object of my invention is to produce a press of great and increasingpower, economically arranged, that will press cotton quickly and well.

V In the drawings illustrating my invention, Figure 1 is a verticalsectional view of the lower-block shown in elevation. Fig. 2 is asimilar view showing the pistons and follower- In the drawings similarreference-letters indicate like parts in all of the figures.

Referring to the drawings, A is the followerforming a part of thepiston-rod ll, arranged to move vertically. The piston-rod B has fixedupon it two pistons-C a small one, and D a large one. The cylinder inwhich said pistons move is composed of parts E and F. The closed bottomof this cylinder has enterto convey air, watcr,or whatever may be usedas a medium in lifting the follower-blockA. Through the upper head I: ofthe compound cylinder passes the piston-rod B. Near thebottom of thepiston-rod 13 istightly secured a collar (1, provided with adowmvardly-pro steam is exhausted from the cylinder, thro jectiug lip e,to engage the catch of a lever,

larger of the two pistons. A packing-ring f is fixed on the saidpiston-rod near the collar (Z, and-between it and said collar areinterposed spiral springs g. The large piston D encircles thepiston-rodB with a tight joint, though they are not'secured gethcr. livotedpermanently toabove them,are U-shaped levers H, with hooks or catches e'and arms e. The purpose of these levers andcatches is to lock the pistonD to the piston rod or shaft, so that the lifting influence exertedon'the said pishereinafter to he described, pivoted to the to the pistonD, or hoods provided ton may be communicated to the follower Athroughthepiston-rod. The U-shaped levers and their hooks or catches arearrange w1tl 1- in the piston D, and all joints incident to theirarrangement are to be made tight by sui able acking. I

In the operation of my press mechanism the steam, liquid, or fluid usedas a medium for power enters the cylinder through pipe a below thepiston c, exerts a pressure upon said piston; and and follower-blockupward until the collar (1 reaches the larger piston D, the rod Bpassing freely through said piston D in its up- 'ard movement, Thepaoking'ring f at this juncture rests in the recess of the said pistonI), the springs g having been compressed by the weight of the same. Assoon as a solid bearing is reached the piston D will be lifted upward inthe continued movement of the iston-rod 1;. It is obvious that as soonas the piston 0 has passed into the larger part of the compoundcflinder-theforce will be exerted upon the under surface of the largerpiston T), thus greatly increasing the ower at a period in the movementof the fol owerblock when the greatest pressure is required.

forces it with the piston-rod After the stroke is complete and thefollow-.

be lowered the fluid, liquid, or fshthe pipe whence it came, (a propervalve to effect this return. being provided,) and the said block,piston, and piston-rod gravitate to the points and positions whence theystarted. Thou-shaped levers ll, when lifted with piston D by gravity,automatically take oner-block is to to the lips of the collar d-as soonas the larger piston begins to rise, and when said piston returns to itssent the arms bear upon the offset 7; of the cylinder E to release theentehes "i from the said collar (1.

Having thus described my invention, What I claim as new, and wish tosecure by Letters Patent, is v 1. The compound cylinder adapted for onesteam or compressed-air supply, composed of two cylinders of differentdiameters united as one by an annular shoulder, in combiner tion withthe pistons of different sizes to suit seicl cylinder, the largerarranged to admit of a free movement of the piston-rotl through it endthe sinnllerfixetl to said roll, and the piston-rod described,siihstantinlly as set forth.

2. in mechanism for pressing cotton and analog ens substances, thecombination, with the follower-block, the piston-rod provided witheollers and paeking-rings described, and the two pistons, of thecompound cylinder composed of two cylinders united as one by an annularplate or shoulder, as set forth.

3. The combination, with the cylinders of different diameters, asclesoribed,an l the piston-rorl and pistons, of the levers H, pivotedabove the larger piston, the arms of which are adapted to bear on thehorizontal wall or plate formins the junction of the two parts of thecompound cylinder normally, and the inlet-pipe, as and for the purposeset forth.

In testimony whereof I am): mysignatnre in presence of two witnesses.

JOSEPH A. BACHMAN.

ll'itnesses:

(1. G. ELLIS, W. P. ANDERSON.

